Sponsored Content
Full Discussion: Read a large file
Top Forums Shell Programming and Scripting Read a large file Post 303014557 by VKIRUPHAKARAN on Wednesday 14th of March 2018 10:47:00 AM
Old 03-14-2018
Appreciate and thanks very much Don, let me try those suggestions.
 

10 More Discussions You Might Find Interesting

1. Filesystems, Disks and Memory

Strange difference in file size when copying LARGE file..

Hi, Im trying to take a database backup. one of the files is 26 GB. I am using cp -pr to create a backup copy of the database. after the copying is complete, if i do du -hrs on the folders i saw a difference of 2GB. The weird fact is that the BACKUP folder was 2 GB more than the original one! ... (1 Reply)
Discussion started by: 0ktalmagik
1 Replies

2. Shell Programming and Scripting

Split large file and add header and footer to each file

I have one large file, after every 200 line i have to split the file and the add header and footer to each small file? It is possible to add different header and footer to each file? (1 Reply)
Discussion started by: ashish4422
1 Replies

3. UNIX for Advanced & Expert Users

Shell script failing to read large Xml record-urgent critical help

Hi All, I have shell script running on AIX 5.3 box. It has 7 to 8 "sed" commands piped(|) together. It has a an Xml file as its input which has many records internally. There are certain record which which have more than hundered tags.The script is taking a huge amount of time more than 1.5 hrs... (10 Replies)
Discussion started by: aixjadoo
10 Replies

4. Programming

Read/Write a fairly large amount of data to a file as fast as possible

Hi, I'm trying to figure out the best solution to the following problem, and I'm not yet that much experienced like you. :-) Basically I have to read a fairly large file, composed of "messages" , in order to display all of them through an user interface (made with QT). The messages that... (3 Replies)
Discussion started by: emitrax
3 Replies

5. Shell Programming and Scripting

Performance issue in UNIX while generating .dat file from large text file

Hello Gurus, We are facing some performance issue in UNIX. If someone had faced such kind of issue in past please provide your suggestions on this . Problem Definition: /Few of load processes of our Finance Application are facing issue in UNIX when they uses a shell script having below... (19 Replies)
Discussion started by: KRAMA
19 Replies

6. Programming

Cannot read a file with read(fd, buffer, buffersize) function

# include <stdio.h> # include <fcntl.h> # include <stdlib.h> # include <sys/stat.h> int main(int argc, char *argv) { int fRead, fPadded, padVal; int btRead; int BUFFSIZE = 512; char buff; if (argc != 4) { printf ("Please provide all of the... (3 Replies)
Discussion started by: naranja18she
3 Replies

7. Shell Programming and Scripting

PHP read large string & split in multidimensional arrays & assign fieldnames & write into MYSQL

Hi, I hope the title does not scare people to look into this thread but it describes roughly what I'm trying to do. I need a solution in PHP. I'm a programming beginner, so it might be that the approach to solve this, might be easier to solve with an other approach of someone else, so if you... (0 Replies)
Discussion started by: lowmaster
0 Replies

8. Shell Programming and Scripting

Script to search a large file with a list of terms in another file

Hi- I am trying to search a large file with a number of different search terms that are listed one per line in 3 different files. Most importantly I need to be able to do a case insensitive search. I have tried just using egrep -f but it doesn't seam to be able to handle the -i option when... (3 Replies)
Discussion started by: dougzilla
3 Replies

9. UNIX for Dummies Questions & Answers

When reading a csv file, counter to read 20 lines and wait for minute then read next 20 till end

Hello All, i am a newbie and need some help when reading a csv file in a bourne shell script. I want to read 10 lines, then wait for a minute and then do a reading of another 10 lines and so on in the same way. I want to do this till the end of file. Any inputs are appreciated ... (3 Replies)
Discussion started by: victor.s
3 Replies

10. UNIX for Beginners Questions & Answers

sed awk: split a large file to unique file names

Dear Users, Appreciate your help if you could help me with splitting a large file > 1 million lines with sed or awk. below is the text in the file input file.txt scaffold1 928 929 C/T + scaffold1 942 943 G/C + scaffold1 959 960 C/T +... (6 Replies)
Discussion started by: kapr0001
6 Replies
PAM_LASTLOG(8)							 Linux-PAM Manual						    PAM_LASTLOG(8)

NAME
pam_lastlog - PAM module to display date of last login SYNOPSIS
pam_lastlog.so [debug] [silent] [never] [nodate] [nohost] [noterm] [nowtmp] [noupdate] [showfailed] DESCRIPTION
pam_lastlog is a PAM module to display a line of information about the last login of the user. In addition, the module maintains the /var/log/lastlog file. Some applications may perform this function themselves. In such cases, this module is not necessary. OPTIONS
debug Print debug information. silent Don't inform the user about any previous login, just update the /var/log/lastlog file. never If the /var/log/lastlog file does not contain any old entries for the user, indicate that the user has never previously logged in with a welcome message. nodate Don't display the date of the last login. noterm Don't display the terminal name on which the last login was attempted. nohost Don't indicate from which host the last login was attempted. nowtmp Don't update the wtmp entry. noupdate Don't update any file. showfailed Display number of failed login attempts and the date of the last failed attempt from btmp. The date is not displayed when nodate is specified. MODULE TYPES PROVIDED
Only the session module type is provided. RETURN VALUES
PAM_SUCCESS Everything was successful. PAM_SERVICE_ERR Internal service module error. PAM_USER_UNKNOWN User not known. EXAMPLES
Add the following line to /etc/pam.d/login to display the last login time of an user: session required pam_lastlog.so nowtmp FILES
/var/log/lastlog Lastlog logging file SEE ALSO
pam.conf(5), pam.d(5), pam(7) AUTHOR
pam_lastlog was written by Andrew G. Morgan <morgan@kernel.org>. Linux-PAM Manual 06/04/2011 PAM_LASTLOG(8)
All times are GMT -4. The time now is 06:10 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy